#define _CRT_SECURE_NO_WARNINGS 1
#include "string.h"
using namespace bit;

void string_test1()
{
	bit::string s1("hello world");
	cout << s1 << endl;
	s1.push_back('1');
	cout << s1 << endl;

	bit::string s2;
	s2 = s1;
	cout << s2 << endl;

	
}

int main()
{

	string_test1();

	return 0;
}
